Heater.



C. E. DE FORRBST.

HEATER.

APPLICATION FILED JAN. 19, 1909.

969,749. Patented sept.6,191o.

3 SHEETS-SHEET 2.

C. E. DE FORREST.

HEATER.

APPLxoA'rIoN FILED JAN. 19, 1909.

969,749. Patented Sept. 6, 1910.

3 SHEETS-SHEET 3.

attoinus.

UNITED sTATEs PATENT OFFICE.

CHARLES E. DE FOR-BESL, O F LIMA, OHIO, ASSIGNOB OF ONE-THIRD TO ELLISE. JONES AND 'ONE-THIRD TO RUSSELL L. ARMSTRONG, OF LIMA, OHIO.

HEATER.

Specification of L'etters Patent.

Patented-sept. 6, 1910.

ApplicationI filed January 19, 1909. Serial 11o. 473,208.

To all whom 'it may concern:

Be it known that I, CHARLES E. DE Fon- REs'r, citizen of the UnitedStates, residing at Lima, in the county of Allen and State of Ohio, haveinvented certain new and useful Improvements in Heaters, of which thefollowing is a specification.

The purpose of this invention is to supply a device for heating rooms,apartments and other` quarters, designed either for abode or assemblage,which will utilize the fuel to the best possible advantage and insure acirculation and distribution of the heat.

A .further purpose of the invention is to provide a heater of the typeusing fluid, as fuel either in the liquid or gaseous state, Iaccordingto the type of burner employed.

The invention also has for its object todevise a heater of the varietyaforesaid admitting of the burner being easily and quickly removed andagain placed in position to meet existing conditions withoutnecessitating separation or dismemberment of the body portion of theheater.

The invention also aims to sup ly a heater which is portable and capableofp generating a maximum amount of caloric to .be effectively used forraising the temperature of a room or other place. desired to be heated.

For a full understandin p of the invention and the merits thereof analso to acquire a knowledge of the details of construction and the meansfor effecting the result, reference is to be had to the following.description and accompanying drawings, in which:

Figure 1 is a vertical transverse section of ahea'ter constructed inaccordance withv and embodying the essential features of this retainininvention; Fig. 2'is a central vertical secv tional view looking towardthe front of the in all the views of the drawings by the same referencecharacters.

The heater comprises a fire box or combustion chamber 1 which may be ofany size ofconstruction and upon legs 2 of any design or pattern. Thefire box is contracted at its .upper end and provided with outer flanges3 and ,a vertical flange 4, the flange 3 being rabbet'ed at its outeredge and supporting an apron 5, which acts bot as a fender or guard landadds to the finish of theheater, since it may be ornamented in any way,either by relief work or by being plated, or by a combination of both.

The bottom 6 of the fire box has a central opening 7 and both verticaland pendent flanges, as clearly indicated in the several views. A seriesof rlbs 8 are formed upon the upper side of the bottom 6 and serve tostrengthen the same and to hold the burner elevated, so that air maycirculate beneath the burner to properly support combustion and equalizedistribution of the heat. A cross piece 9 extends across the opening 7and is provided at a central point with an opening to receive a in 10. Acam 11 surrounds the opening o the cross iece and is placed upon the topside thereo and serves as a means to effect vertical movement of the pin10. A plate 12 is located beneath thebottom 6 and adapted to close theopening 7 thereof, or to regulate the amount of air entering the heater.The pin 10 is mounted in the opening of the cross piece 9 and passesthrough an opening of the plate 12 and is formed with a shoulder 13iipon which the plate 12 rests. The lower en of the pin 10 is providedwith a suitable finger piece to admit of turning the pin when requiredto effect vertical adjustment of the plate 12. A stop 14 near the upperend of the pin 10 rests upon the cam 11 and coperates therewith toeffect vertical movement of the pin 10 and plate 12 when said pin 10 isrotated. The bottom 6 is provided exterior to the large opening 7 with aseries of smaller openings 7 for the ingress of air into the fire box orcombustion'chamber to msure proper working of the heater.

The body of the heater comprises an air-I shaft 15 and inner and outercasings 16 Iand refcrably mounted lower portion of' the air-shaft 15passesy through the fire box, as indicated most clearly in Figs. 1 and2. The casings 16 and 17 terminate at their lower ends in the plane ofthe top of the fire box and are supported upon-the outer flange 3. Thelower end portion of the air-shaft 15 is contracted, as indicated at 18,and is of a length approximating the height of the fire box, the lowerend of the'fcontracted portion 18 surrounding the opening 7 of thebottom 6 fitting within the vertical flange surrounding the opening 7.lThe upper end portion of the air-shaft is similarly contracted, asindicated at 1 9, and makes close connection with the upper plate 20which joins and properly spaces the parts 15, 16 and 17.

Opposite walls of the air-shaftfas the front and back, are reverselybent to provide an extended heat? radiating surface. The side walls ofthe air-shaft arepreferably straight, since they are comparativelynarrow. The air-shaft may be constructed in any manner and by preferenceis. formed of similar sections whichare jointed -at 'their sides, themeeting edges being provided with outer flanges 21 which are fittedtogether and receive the securing means, such as rivets or bolts. Theflanges 21 do'not extend the entire lengthof the air-shaft, butterminate a distance from the up er and lower ends thereof and form ineffect ribs which touch the side walls of .the casing 16 and subdividethe space into two vertical passages, as indicated a't 22' and 23 for apurpose presently to be explained. A flange 24 extends laterally andrearwardly from the lower rear portion of the air-shaft and is inclinedfrom front to rear and closes the lower end of the rear passage 23. Theflan e 24: acts as-a deflector and vis `preferably ormed with the -rearportion of the air'shaft as a part thereof.

The central portion of the upper plate 20 is formed with an opening 25and upper and lower flanges surround said opening,

the lower flange making connection vwith the upper contracted end 19 ofthe air-shaft and retaining-the same in place. The upper flangesurrounding the opening 25 forms la raised seat upon which a plate 26 isadapted to close. The outer portion of the plate 2O is stepped andreceives the upper ends of thecasmgs 16 and 17 which make closeconnection therewith. The middle portionof end of the air-shaft and theupper end of the casing 16 is solid, so as to completely close the upperends of the passages 22 and 23. The rear portion of the plate 20 ex?tending-Jover the spaceor duct 27 formed between the rear portions ofthe casings-16 and 17 is .solid to close said space at its downv throughpassage 23, through openino' :amount upper end. The part of the late 20closing the space or duct 28 forme between the front and side walls ofthe casings 16 and 17 is provided with a series of openings 29v toestablish connection between the said duct 28 and the intermediatechamber 30 inclosed by the top 3l fitted to the upper end of the heater.

a series of openings 32 are formed for ythe outflow of -the heated air.An opening 30 is provided in the upper rear portion of the casing 17anda is surrounded by means of a collar 33 to, which a stove-pipe may be.fitted for carrying oft the products ofy combustion resulting from theburner when the heater is in operation. An opening 34 lis provided inthe lower .rear portion of the casing 16 and establishes connectionbetween the lower ends of the passages 23 and 27;

The lower end of the space or duct 27 is The space or duct 28 is closedat its lower end by the outer flange 3 in which to effect verticaladjustment thereof. Thel upper or projecting end of the set screw 35 maybe ornamented in any way. The

plate 26 is directed in its vert-ical movements by means of guide pins36 which operate in openings 36 1n the plate 20,.'the latter beingformed with openings to receive said guide pins which project from theplate 26.-

The burner 37 may be of 'any type using fluid as fuel, whether liquid orgaseous.

The burner is preferably formed of sections which are connected byinterlocking joints 38, thereby admitting of the burner being easily andreadily removed from the heater or placed in position Without requiringthe heater to be taken apart. vThe burner occupies a position in thelower fire box and rests upon the ribs 8 provided upon the upper side ofthe bottom 6.

ortion of the When the heater is in operation the hot i air and productsof combustion resulting from the burnerv 37 vwhen lighted, Apass upwardinto the firebox, thence through the space or passage 22 surrounding thefront portion of the air-Shaft,- thencearound the upper contracted end19 Vof the air-shaft 34 'intothe space or duct 27,'thence u Wartherethrough andoutthrough the out et 30' vto be carried of by means ofa fsmokepip'e,

not shown, Ato a' convenient point of disother place to be heated. Itwill be observed that by setting the plates 12 and 26, which are ineii'ect dempers, a comparatively small amount of air may be admittedinto the lower end of the air-shaft, which becoming heated is expandedbefore reaching the outlet at the upper end of the airshaft and isfurther expanded b its passage through the duct 28. B c osing theopening 7 air may be prevent from entering the air-shaft, therebymaintaining the heater in a warm condition for a comparativl great lenth of time after the burner has een close It will be observed that theburner is readilyv accessible by lifting the upper portion of the heaterfrom the base o r by removing the same through an o 'ening provided in aside of the tire box, tie sectional formatioi of the burner admitting ofthe separation of the parts, so asto clear the'lower end portion of theairsha-ft.

A The seating faces of the plates 12 and 26 are" provided with asbestosor like material 26 to insure a elo/se tit when said plates are f isvclaimed as new is:

closed upon their respective seats. This obviates the necessity ofrinding or tiling.

Having thus/describe the invention what 1. A heater comprising a firebox, an airshaft havin its lower portion extended through the re box,inner and outer casings surrounding the upper portion of the airshaftand spaced therefrom and from each other, the space between the,air-shaft and the inner casing being subdivided into vertical passageswhich are in communication at their upper ends, one of said passageshaving direct communication at its lowerend with the fire box and theother being 'closed at its lower end and having direct .the innercasingbeing subdivided into vertical passages which are in communication 'attheir upper ends, one of said lpassages lhaving direct communication atits lower end with the fire box and the other being closed at' its lowerend and havingdirect communication with a portion of the spa formedbetween the inner and outer casings, and the space between the inner andouter casingsbeing subdivided, the portion having direct communicationwith the 'lower end of the space `surrounding the air-shaft beingprovided at its upper end* with an outlet and the remaining portionhaving its upper end in communication with the upper portion of theair-shaft and having its lower portion in communication with the room orplace in which the heater is situated to discharge the heated air intothe said room.

3. A heater comprising a fire box, an airshaft having its lower portionextended through the fire box, inner and outer easings surrounding theupper portion of the air-shaft and spaced therefrom and-from each other,the space between the air-shaft and the inner casin being subdividedintovertical assages w ich are in communication at t eir upper ends, one ofsaid passages having direct communication at its lower end with the firebox and the other being closed at its lower end and having directcommunication with a portion of the space formed between the inner andouter casings, and the space between the inner and outer casings beingsubdivided, the portion having direct communication with the lower endof the space surroundingr the air-shaft being provided at its upper endwith au outlet and the remaining portion having its upper end incommunication with the upper portion of the air-shaft and having itslower portion in communication with the room or place in which theheater is situated to discharge the heated air into the said room, and adamper for regulating the communication between the upper portion oi theairshaft and .the portion of the space between the inner and the outercasings having coinmunication therewith.

4. A heater comprising a iirebox having a. damper controlled opening inits bottom, an air shaft extending through said irebox and incommunication at its lower end with the damper controlled opening,easings spaced from each other and the airshafta transverse plateconnecting the upper ends of the air -shaft and casings and providedwith a damper controlled openinr in communication with the upper endot'said air-shaft, a top plate fitted to said transverse plate andspaced from the latter yto form an intermediate chamber, the spacebetween the casings being divided vertically to form front and rearducts, one of which is closed at its opposite ends and provided with aninter mediate outlet, the other ductbeing in communication with saidintermediate chamber and with the interior of the room, said transverseplate being provided with open ings leading into the duct havingcommuni-- cation with the interior of the room, and means sub-dividingthe space between the air-shaft and the inner casing into vertical.

passages which are in communication at their upper ends about theupperportion of the air-shaft, one of said VVpassages having directeommunlcatlon atits lower end with the frebox and" the other passagehaving direct communication at its lower end with uy

